This is absolute classic Steve Perry fiction. I bounced off Churl a bit (not sure exactly why, I'll have to re-read and figure that out) but this one was perfect.
What Perry writes is competence porn. The characters are almost all hyper-competent, but what gives it a freshness is they're emotionally intelligent, not just good at shooting or punching stuff. Even, like, the mysterious rich boss is extremely smart, forgiving, and understanding - no tantrums, no throwing vases. Where the characters do have flaws they're usually very aware of them (I like this person but I immediately recognize my judgment might be flawed b/c they have this trait I am partial to! so I will not trust them too quickly - that kind of thing)
The action is solid and the characters are engaging, as usual for a Perry novel. This is, front and center, a martial arts action book (there's a bit of magic thrown in - but just a touch - while most of the action is highly realistic).
The violence is not super brutal (as in, not terribly graphic, no torture) and there is little or no sex on-page. There is plenty of diversity, in that casual in-background kind of way, so if the fact that there are people of color featured front and center bothers you, you've been warned!